Welcome to Sound Deadening

Hi there! My name is Eduardo, I'm a car enthusiast from Portugal who loves silence. In this website you can check my sound deadening projects with pictures, videos, how-tos and some product reviews. Enjoy!

Current project: Opel Ampera

Deadening on the roof

Blocking wind noise and heat. The Ampera is now as silent at 120km/h as a stock Ampera at 80km/h. A great result, now under 60dB at 120km/h.

Read more...

	Idle	80 km/h	120 km/h
Factory	29 dB	59 dB	63 dB
Current	28.5 dB	56 dB	59 dB

Approximate weight added: 21.3 kg

The Cars

Opel Ampera

Citroën C6

Peugeot 406 Coupé